Unary operator - Study guides, Class notes & Summaries

WGU C175 OBJECTIVE ASSESSMENT PRACTICE TEST ANSWER 1. The Entity-Relationship (E-R) model is _____. a. a diagramming technique that describes record structures (i.e. the fields that make up the records of a file) b. an alternative to indexing and hashing as a means for providing direct access in files c. a diagramming technique that describes entities, their attributes, and the relationships between them d. an alternative to file design in which attributes are used instead of fields e. a diagram...

Program Consists of instructions executing one at a time. Input A program gets data, perhaps from a file, keyboard, touchscreen, network, etc. Brainpower 0:02 / 0:15 Process A programs performs computations on that data, such as adding two values like x + y. Output A programs puts that data somewhere, such as to a file, screen, network, etc. Computational thinking Creating a sequence of instructions to solve a problem. Algorithm A sequence of instruct...

WGU D278 Objective Assessment Prep (Latest 2024/ 2025 Update) Scripting and Programming - Foundations | Questions and Verified Answers| 100% Correct| Grade A Q: Assignment statement Answer: Assigns a variable with a value; and keeps that value during subsequent statement until X is assigned again. Assignment's left side must be a variable (ex. x=5) Q: Variable declaration Answer: Declares a new variable, specifying the variables name and type Q: Integer variabl...

TYPICAL QUESTIONS & ANSWERS OBJECTIVE TYPE QUESTIONS Each question carries 2 marks. Choose the correct or best alternative in the following: Q.1 In the relational modes, cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints. Ans: A Q.2 Relational calculus is a (A) Procedural language. (B) Non- Procedural language. (C) Data definition language. (D) High level language. Ans: B ...

WGU C170 Data Management - Applications|Latest Update Complete with A+ Graded Answers Domain In data modeling, the construct used to organize and describe an attribute's set of possible values. Primary key (PK) An identifier composed of one or more attributes that uniquely identifies a row. Also, a candidate key selected as a unique entity identifier. A minimal superkey. Key One or more attributes that determine other attributes. Determination The role of a key. In the c...

Data Management Applications C170 What is a table? A table is a persistent representation of a logical relation that is a relation whose contents can be saved for permanent use. What are the characteristics of a relational table? The characteristics of a relational table are that a table is perceived as a two-dimensional structure composed of rows and columns, each row (tuple) represents a single entity occurrence within the set, each column represents an attribute, each column has a dis...

What is the primary feature of a database management system? Efficient data handling. It stores data in an organized manner. Data security and access control. It allows for easy access and manipulation of data. Minimize Data redundancy. It reduces data duplication. All of the above - ️️ALL What is data modeling primarily used for? - ️️To represent relationships between business entities In data-related terms, what is an entity? - ️️A thing in the real world with an independe...

WGU C173 - Scripting and Programming Problem set study Exam Questions and Correct answers Guaranteed Success 2024/2025 Literal - correct answer A specific value in code, like 2. Operator - correct answer A symbol that performs a built-in calculation, like the operator + which performs addition. Unary minus - correct answer the subtraction sign (-) used as a negative. Note about integer literal - correct answer Commas are not allowed, so 1,333,555 must be written as 1333555. Increm...

Java OCA 1Z0-808 - Operators and Statements Exam Questions & Answers 2023/2024 operator - ANSWER-A special symbol that can be applied to a set of variables, values, or literals—referred to as operands—and that returns a result. What three types of operators are available in Java? - ANSWER-Unary Binary Ternary Arithmetic operators - ANSWER-+, -, *, /, %, --, ++ How can you change the order of precedence explicitly? - ANSWER-With parentheses. *True or False:* When app...

DBI202 - FA20 (QUIZ 1, 2, 4, 5) QUESTIONS WITH CORRECT ANSWERS Of the various database models, the _______ model is the most prevalent today a. relational b. hierarchical c. linked list d. network CORRECT ANSWER A Each column in a relation is called _______. Select one: a. a tuple b. an attribute c. an attitude d. a union CORRECT ANSWER B Each row in a relation is called _______. Select one: a. an attitude b. a tuple c. an attribute d. a union CORRECT ANSWER B A unary o...